Technical Drawing Paper 2, Nov/Dec. 2012

Questions:	1	2	3	4	5	6	7	8	9	10	Section B	1	2	Main

General Comments
Weakness/Remedies
Strength

Question 10
In the figure below, sketch a right-hand helical curve which starts at a point X (show hidden details).
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Observation
Candidates were expected to: divide the pitch into 12 equal parts; draw the circle and divide into 12 equal parts; locate the points of intersection; join the points to obtain the curve. The solution is shown below